I Am A Male With A UTI. I Have Had

I am a male with a UTI. I have had some blood in my urine. At the ER I was given Cipro to treat the UTI. Then they determined with the culture that a better drug would be Nitrofurantoin 100 mg. I have taken it for five days and the blood cleared up. Now I notice there is a little visible blood in urine when I use hard pressure during a BM. I have been drinking cranberry juice mixed with half water. Could the cranberry juice cause blood in the urine?